Pipe tongs



C. A. JOHNSTON.

PIPE TONGS.

APPLICATION FILED SEPT. 14, 1921. 1 ,433,623," Patented Oct. 31, 1922.

, I x a it x w N PXPE TONGS.

Applicationfilen September 1%, 1821. No. 506

T all ill/107W, if may concern. Preferably the shanks or handle portionsBe it known that l, CARLTON it. JOHN: of these members 10 and ll will beformed errors, a citizen of the United States, residing with stop lugswhich abut against each at New Rockford, in the county of Eddy otherwhen the members 10 and 11 are 5 and State of North Dakota, haveinvented brought together limiting the nward move- 60 certain new anduseful improvements in ment of the members and 11 and prefer Pipe Tongs,of which the following is a ably there will be pivoted to the member 10specification reference being bad to the aca link 931 the opposite endof which lone?- companying drawings. tu inally slotted as 2:2 and pinwill 10 This invention relates to pipe tongs such e end from the mo erllthrough the slot 65 as are used in raising and lowering strings 22 thislinl ac to limit the outward of-pipe in drilled wells and in screwingand movement of the l: ,inbers l and 11 with unscrewing sections ofpipe, and the general l lation to each other. The :nibers l0 and objectof my invention is to provide a parare r wn ther by meal of a strong 15ticularly simple and elfective pipe tones of col spring 2% hating link7o this character so constructed that it will hold ore of .vhichisattached to the orernity of r the plpe very strongly and. firmly a d thone of the handles 14, the other link 26 belng it may be readily adaptedto diflj'erent sizes relatively long and attached to the other e2;-

of pipe within reasonable limits. tremity of the handle 14-. OtherObjects W111 pp 111 the Oil it will be seen that with this d "ce greatthe following descrlptlon. force may be exerted upon the pipe engaged Myinvention is illustrated inthe accoinby the teeth 19 and thus the pipemay be panying drawings, wherein held from rotation or supported omdown- Figure 1 is a top plan View of a pipe ward movement and that thespring; 24: will 25 wrench constructed in accordance with my ac toholdthe lovers or members 10 and 11 invention, one or ge being partly brokenwith the teeth 1?!) of the jaws in such engage away; nient wit the pipeto prevent the pipe Figure 2 is a fragmentary inside elevatones fromslipping;- upon the pipe. tion of one of the elements of the pipe The toes may be used with any pipe and 90 wrench; the jaws held closed bymeans of the spring Figure 3 is an elevation Of the link lockconsisting; of the parts 2F and Referring to these drawings, it will bewithout the he of set screws, or lug; tighh seen that my pipe tongscomprises the two eners. and maybe used by one person alone. members 10and 11. Thcsc 'm hc are The tones be used by placingtwo pivoted to eachother at 0116 end, one of h planks (not shown) across the top of a wellmembers being bifurcated, as at 12, for this curb two or three inchesfrom the pipe on purpose and the other member being f r each sidethereof. upon which the tongs may with a nut 13 eX ending through t e hbe placed. thereby giving the tongs a solid cationw through which apivot pin passe foundation: The tones then placed on to The oppositeends of the members 10 and 11 the pipe and l cited by the parts 2 i 25and are formed with handles 14. The middle 96 thus holcl the pipe firrnlso that it portion of each member 10 and 11 is en cannot sl' Teen tl isth of pipe larged as at 15, and the inner f ce Of this may be e iewed onthe first section of pipe, enlargement is semi-circularly recessed, asthus held, and the pipe may then be lowered 45 at 16, The semi-circularface of this recess or i d as d i ed, 100 is also recessed, as at 16Disposed within The spring 24. is fastened to a link this rectangularrecess 16 is a toothed gripwhich is attached to one end of the hand pingjaw 17 formed of hardened steel held grip of one of the jaws by a setscrew in place by means of screws 18, each grlp- The link 26 providedwith a series of 5o ping aw havinga t -shaped recess on its notches 26;so that the operator may slip 165 inner face, the two walls of theJ-shaped any one of thenotches 26 over set screw 145' recess beingtoothed, as at 19 See igu e on'the end of the other hand grip, and sosothat the toothed faces will engage and curely lock the tongs and then asingle operbite into the pipe when the levers or meinator may readilyhandle the tongs. The

as bers 10 and 11 are brought together. purpose of the link 21 is toprevent the jaws 10 and 11 from spreading too far, and to hold the jawsin place and prevent twisting or breaking of the oint at 13.

I claim 1. A pipe tongs of the character described comprising oppositelydisposed, confronting members operatively pivoted to each other at oneend and provided with handles at the other end, confronting jaws on saidmembers, a contractile spring operatively attached to one of saidhandles, and a link having a plurality of notches engaged with saidspring and adapted ,to be operatively engaged with the other handlewhereby to resiliently limit the movement of the members away from eachother and urge the comprising oppositely disposed, confronting membersoperatively pivoted to each other at one end and provided with handlesat the other end, confronting jaws mounted upon said members, means forlimiting the movement of the members toward each other and the movementof the members away from each other, and means at the extremities of themembers whereby the members are urged toward each other.

A pipe tongs of the character described comprising two members pivotedto each other at one end, the opposite end being provided with handles,each of said members intermediate its length being enlarged and theconfronting edge faces of said members at this enlargement beingconcave, there being rectangular recesses formed in said concave faces,rectangular jaws removably disposed in said recesses, means holding thejaws in place within said recesses, means limiting the outward andinward movement of themembers, and means urging the members toward eachother,

In testimony whereof I hereunto aifix my signature.

CARLTON A. JOHNSTON.

